AMERISUN vs WORX Nitro 21" Cordless Lawn Mower, Electric Mower
Updated July 2026 — AMERISUN wins on power, WORX Nitro 21" Cordless Lawn Mower, Electric Mower wins on price and battery life.
The AMERISUN offers solid performance at a lower price, while the WORX provides advanced features and eco-friendliness. Choose based on your priorities.
Why AMERISUN is better
Price
AMERISUN is $135 cheaper
Weight
AMERISUN is lighter at 63 lbs
Simplicity
AMERISUN has a straightforward recoil start
Why WORX Nitro 21" Cordless Lawn Mower, Electric Mower is better
Technology
WORX features Aerodeck technology
Power
WORX has a brushless motor for better performance
Functionality
WORX offers 3-in-1 mowing options
Overall score
Specifications
| Spec | AMERISUN | WORX Nitro 21" Cordless Lawn Mower, Electric Mower |
|---|---|---|
| Engine Type | Gas | Electric |
| Self-Propelled | No | Yes |
| Mulching | Yes | Yes |
| Runtime | N/A | 50 mins |
| Speed Control | No | Variable |
Dimension comparison
Overview of the AMERISUN 21 Inch Gas Push Lawn Mower
The AMERISUN 21 Inch Gas Push Lawn Mower is an efficient choice for homeowners looking to maintain small to medium-sized lawns. Priced at $224.99, it ranks 8,802 in sales, indicating a solid presence in the market. This gas-powered mower is equipped with a reliable 144cc 4-stroke OHV engine that ensures robust cutting performance. Its design allows for easy recoil start, making it user-friendly.
The mower features a 21-inch cutting width, which helps reduce mowing time significantly. Additionally, it provides a 2-in-1 option for mulching and side discharge, allowing users to handle various grass conditions effectively. With a lightweight and foldable design, it weighs only 63 lbs, making it easy to store and transport.
Overview of the WORX Nitro 21" Cordless Lawn Mower
The WORX Nitro 21" Cordless Lawn Mower stands out with its advanced electric operation and self-propelling capabilities, priced at $359.99. It has a better sales rank of 4,191, showcasing its popularity among consumers. This mower is powered by two 20V 5.0Ah PowerShare Pro batteries, which offer a runtime of up to 50 minutes.
Featuring innovative Aerodeck technology, it maximizes air volume in the cutting deck to enhance cut quality and efficiency, reducing the chances of clogging. The self-propelled function with variable speed up to 3.7 MPH allows for a more effortless mowing experience, especially on hills or uneven terrain. With 3-in-1 functionality for mulching, bagging, and side-discharge, it caters to various lawn care needs.
Power and Performance
When comparing power sources, the AMERISUN mower is gas-powered while the WORX model operates on batteries. The AMERISUN boasts a powerful 144cc engine, providing consistent cutting performance suitable for various lawn conditions. In contrast, the WORX mower’s brushless motor delivers 40% more power than its predecessors, making it efficient for cutting thicker grass.
The AMERISUN's gas engine allows it to run continuously without the need for recharging, which can be a significant advantage for larger lawns. However, the WORX’s electric operation eliminates emissions and noise, which many users find appealing. The choice between gas and electric power often comes down to personal preference and lawn size.
Cutting Width and Versatility
Both mowers feature a 21-inch cutting width, making them efficient for mowing medium-sized lawns. The AMERISUN offers a 2-in-1 option for mulching and side discharge, which allows for versatile lawn care depending on grass conditions. The lightweight design aids in maneuverability for quick adjustments.
On the other hand, the WORX Nitro provides 3-in-1 functionality, including mulching, bagging, and rear side-discharging. This enhances its versatility even further, accommodating various mowing preferences. The ability to switch modes seamlessly can be especially beneficial for users who want to adapt to changing grass heights and conditions throughout the season.
Ease of Use and Maintenance
The AMERISUN mower features a simple recoil start and a single lever for 6-position height adjustments ranging from 1.5" to 3.9". This setup makes it easy for users to adjust cutting heights and start mowing without hassle. Its foldable design also offers easy storage, a critical factor for those with limited space.
The WORX mower is designed for convenience with a self-propelled feature that takes the effort out of mowing. Its variable speed control allows users to set a comfortable pace, making it user-friendly for people of all ages. Moreover, the onboard charge-level indicator keeps users informed about battery life, minimizing the risk of unexpected downtime.
Environmental Impact
In terms of environmental considerations, the AMERISUN gas mower produces emissions typical of gas-powered engines, which could be a drawback for eco-conscious consumers. However, its efficient engine can handle various mowing tasks effectively.
Conversely, the WORX Nitro operates quietly and without emissions, aligning with a growing preference for sustainable lawn care solutions. Its electric design not only provides a quieter experience but also reduces the overall carbon footprint associated with lawn maintenance. This makes it an appealing choice for environmentally minded consumers.
Price Comparison
The AMERISUN is priced at $224.99, making it approximately 37% less expensive than the WORX Nitro, which retails for $359.99. This price difference can be significant for budget-conscious consumers, especially those with smaller lawns that may not require the advanced features of the WORX mower.
While the AMERISUN offers solid performance at a lower price point, the WORX's higher cost reflects its advanced technology and additional features. Customers should weigh the importance of these features against their budget and lawn care needs.
Which should you buy?
Choosing between the AMERISUN 21 Inch Gas Push Lawn Mower and the WORX Nitro 21" Cordless Lawn Mower ultimately depends on individual preferences and lawn care requirements. The AMERISUN is a great option for those seeking a reliable, budget-friendly gas mower for smaller to medium yards, especially if they value traditional gas power and simplicity.
In contrast, the WORX Nitro appeals to those who prioritize eco-friendliness, advanced technology, and convenience. Its self-propelled feature and variable speed, along with 3-in-1 functionality, make it a strong contender for handling diverse mowing tasks. Ultimately, if budget is a primary concern, the AMERISUN is the more economical choice, but for users seeking cutting-edge features and battery operation, the WORX Nitro is worth the investment.

